Abstract: A BIM cloud platform for construction management is independently developed by Shenzhen Road and Bridge Group. Large-scaled 3D BIM models of buildings can be imported into the platform, and through the lightweight processing technology, BIM models can be queried and browsed at both CS end and MS end in fast speed. Taking the 3D model as the core, the project management on quality, safety, schedule, operation and maintenance are all able to be integrated to realize the refined and informatized management of the project, which will significantly improve the overall efficiency of the project.